Analysis Overview
SHA256
c78d053710f55ecd76867851e5ef0a5fc387ff22e146aeeb6055b928a74322e1
Threat Level: Known bad
The file c512b0dccb9f92204e6fb655c6b51333 was found to be: Known bad.
Malicious Activity Summary
Windows security bypass
Tofsee
Sets service image path in registry
Creates new service(s)
Modifies Windows Firewall
Checks computer location settings
Deletes itself
Executes dropped EXE
Suspicious use of SetThreadContext
Launches sc.exe
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-03-13 05:19
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-03-13 05:19
Reported
2024-03-13 05:22
Platform
win7-20240221-en
Max time kernel
143s
Max time network
146s
Command Line
Signatures
Tofsee
Windows security bypass
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\qizouxri = "0" | C:\Windows\SysWOW64\svchost.exe | N/A |
Creates new service(s)
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
Sets service image path in registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\qizouxri\ImagePath = "C:\\Windows\\SysWOW64\\qizouxri\\arrkazao.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\qizouxri\arrkazao.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 2492 set thread context of 2388 | N/A | C:\Windows\SysWOW64\qizouxri\arrkazao.exe | C:\Windows\SysWOW64\svchost.exe |
Launches sc.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\c512b0dccb9f92204e6fb655c6b51333.exe
"C:\Users\Admin\AppData\Local\Temp\c512b0dccb9f92204e6fb655c6b51333.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\qizouxri\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\arrkazao.exe" C:\Windows\SysWOW64\qizouxri\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create qizouxri binPath= "C:\Windows\SysWOW64\qizouxri\arrkazao.exe /d\"C:\Users\Admin\AppData\Local\Temp\c512b0dccb9f92204e6fb655c6b51333.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description qizouxri "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start qizouxri
C:\Windows\SysWOW64\netsh.exe
"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
C:\Windows\SysWOW64\qizouxri\arrkazao.exe
C:\Windows\SysWOW64\qizouxri\arrkazao.exe /d"C:\Users\Admin\AppData\Local\Temp\c512b0dccb9f92204e6fb655c6b51333.exe"
C:\Windows\SysWOW64\svchost.exe
svchost.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | microsoft.com | udp |
| US | 20.112.250.133:80 | microsoft.com | tcp |
| US | 8.8.8.8:53 | microsoft.com | udp |
| US | 8.8.8.8:53 | microsoft-com.mail.protection.outlook.com | udp |
| US | 52.101.42.0:25 | microsoft-com.mail.protection.outlook.com | tcp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta6.am0.yahoodns.net | udp |
| US | 67.195.204.72:25 | mta6.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| IE | 172.253.116.27:25 | smtp.google.com | tcp |
| US | 8.8.8.8:53 | mail.ru | udp |
| US | 8.8.8.8:53 | mxs.mail.ru | udp |
| RU | 217.69.139.150:25 | mxs.mail.ru | tcp |
| US | 8.8.8.8:53 | refabyd.info | udp |
Files
memory/2320-1-0x0000000003380000-0x0000000003480000-memory.dmp
memory/2320-2-0x0000000000250000-0x0000000000263000-memory.dmp
memory/2320-4-0x0000000000400000-0x0000000003250000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\arrkazao.exe
| MD5 | 996bc7448c2dda53a5ec19c81a3cc96b |
| SHA1 | 6dbc82e5c4280c73d0197dba329f5db83a50d23f |
| SHA256 | dd8a07e3e7dc4673200687e6c875e578ccd87bc0ae73f0be297aec12ab2ce58f |
| SHA512 | 957751f150aba471cc514c66b831a6f02e7f546b478a0e596852ed26600196d68a9ec7bf4055d7662c00dcca6e3c747e85699fbd3fb2768060c08ad25a1e6fbe |
memory/2320-6-0x0000000000400000-0x0000000003250000-memory.dmp
memory/2320-7-0x0000000003380000-0x0000000003480000-memory.dmp
memory/2320-8-0x0000000000250000-0x0000000000263000-memory.dmp
C:\Windows\SysWOW64\qizouxri\arrkazao.exe
| MD5 | 6e28c320c645eab8c988560e177ea073 |
| SHA1 | f4dc87138579cda783ff61fe46c5464d936ea96e |
| SHA256 | a49d19964c002c532281e061309de7c94254c1bc4c0a574ff8407630621e946f |
| SHA512 | 73a8d15f10c27505a30cf19069e589482a9a4da0b36055b87560e3087f60682951b2f235d0801929cc537ae832c301ddd185e4d3401a48773ce4e304504af5e6 |
memory/2492-11-0x00000000036B0000-0x00000000037B0000-memory.dmp
memory/2388-12-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2388-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
memory/2388-15-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2388-19-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2492-17-0x0000000000400000-0x0000000003250000-memory.dmp
memory/2492-20-0x0000000000400000-0x0000000003250000-memory.dmp
memory/2388-21-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2388-22-0x0000000000080000-0x0000000000095000-memory.dmp
memory/2492-23-0x0000000000400000-0x0000000003250000-memory.dmp
memory/2388-24-0x0000000000080000-0x0000000000095000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-03-13 05:19
Reported
2024-03-13 05:22
Platform
win10v2004-20240226-en
Max time kernel
149s
Max time network
154s
Command Line
Signatures
Tofsee
Creates new service(s)
Modifies Windows Firewall
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\netsh.exe | N/A |
Sets service image path in registry
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\cryrgrir\ImagePath = "C:\\Windows\\SysWOW64\\cryrgrir\\obxnvcxh.exe" | C:\Windows\SysWOW64\svchost.exe | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\c512b0dccb9f92204e6fb655c6b51333.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\svchost.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\cryrgrir\obxnvcxh.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1300 set thread context of 1276 | N/A | C:\Windows\SysWOW64\cryrgrir\obxnvcxh.exe | C:\Windows\SysWOW64\svchost.exe |
Launches sc.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\sc.exe | N/A |
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\c512b0dccb9f92204e6fb655c6b51333.exe
"C:\Users\Admin\AppData\Local\Temp\c512b0dccb9f92204e6fb655c6b51333.exe"
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\cryrgrir\
C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\obxnvcxh.exe" C:\Windows\SysWOW64\cryrgrir\
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" create cryrgrir binPath= "C:\Windows\SysWOW64\cryrgrir\obxnvcxh.exe /d\"C:\Users\Admin\AppData\Local\Temp\c512b0dccb9f92204e6fb655c6b51333.exe\"" type= own start= auto DisplayName= "wifi support"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" description cryrgrir "wifi internet conection"
C:\Windows\SysWOW64\sc.exe
"C:\Windows\System32\sc.exe" start cryrgrir
C:\Windows\SysWOW64\cryrgrir\obxnvcxh.exe
C:\Windows\SysWOW64\cryrgrir\obxnvcxh.exe /d"C:\Users\Admin\AppData\Local\Temp\c512b0dccb9f92204e6fb655c6b51333.exe"
C:\Windows\SysWOW64\netsh.exe
"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul
C:\Windows\SysWOW64\svchost.exe
svchost.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 228.249.119.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.200:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 140.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | microsoft.com | udp |
| US | 20.112.250.133:80 | microsoft.com | tcp |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | microsoft.com | udp |
| US | 8.8.8.8:53 | microsoft-com.mail.protection.outlook.com | udp |
| US | 52.101.40.26:25 | microsoft-com.mail.protection.outlook.com | tcp |
| US | 8.8.8.8:53 | 133.250.112.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 133.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 58.55.71.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 104.241.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | yahoo.com | udp |
| US | 8.8.8.8:53 | mta7.am0.yahoodns.net | udp |
| US | 98.136.96.76:25 | mta7.am0.yahoodns.net | tcp |
| US | 8.8.8.8:53 | 176.178.17.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 64.134.221.88.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | google.com | udp |
| US | 8.8.8.8:53 | smtp.google.com | udp |
| IE | 172.253.116.27:25 | smtp.google.com | tcp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | mail.ru | udp |
| US | 8.8.8.8:53 | mxs.mail.ru | udp |
| RU | 94.100.180.31:25 | mxs.mail.ru | tcp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 8.8.8.8:53 | refabyd.info | udp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 204.79.197.200:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | defeatwax.ru | udp |
| US | 8.8.8.8:53 | 63.141.182.52.in-addr.arpa | udp |
Files
memory/420-1-0x0000000003550000-0x0000000003650000-memory.dmp
memory/420-2-0x00000000034B0000-0x00000000034C3000-memory.dmp
memory/420-4-0x0000000000400000-0x0000000003250000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\obxnvcxh.exe
| MD5 | 3ff06adc89f3447e84281b00d462afc3 |
| SHA1 | e01af46570c511db04ecd7336a33a7c385add6df |
| SHA256 | cdf77ec387a3a35b20f7ff29083642a3a7c19e65b1ceaae0f5882bd0a820bad8 |
| SHA512 | 523d6e51c541ca6a477c96f00a501b540799c6b71cc1e9f25af9b52d9b84f4ee8b59bd392637897ecccb2e431aab00b4d7d13d548afdaa5892dfbf1ad617b052 |
C:\Windows\SysWOW64\cryrgrir\obxnvcxh.exe
| MD5 | dc4a27d88d299b8f3697e05ea761b5a7 |
| SHA1 | 74e4c44097daddfe7a463b7b4a9971726409aef5 |
| SHA256 | 54370381b87d44e483cb3528ac48c89731a050e8212328003e8b77c1e84de4a2 |
| SHA512 | 5f9d40f9d34c252afca10256427330c94038eaf67b9cebbf8d6d52e704dd8a7f1e2b7c837307182b963c7a46d05a5143c6284e5ca9941753057ece6a6d17c965 |
memory/420-7-0x0000000000400000-0x0000000003250000-memory.dmp
memory/420-9-0x00000000034B0000-0x00000000034C3000-memory.dmp
memory/1300-10-0x00000000032A0000-0x00000000033A0000-memory.dmp
memory/1276-11-0x0000000000FB0000-0x0000000000FC5000-memory.dmp
memory/1276-14-0x0000000000FB0000-0x0000000000FC5000-memory.dmp
memory/1300-16-0x0000000000400000-0x0000000003250000-memory.dmp
memory/1300-15-0x0000000000400000-0x0000000003250000-memory.dmp
memory/1276-17-0x0000000000FB0000-0x0000000000FC5000-memory.dmp
memory/1276-18-0x0000000000FB0000-0x0000000000FC5000-memory.dmp
memory/1276-19-0x0000000000FB0000-0x0000000000FC5000-memory.dmp